20 Dollars - Elizabeth II Four Seasons of the Maple Leaf

The Four Seasons of the Maple Leaf series sits within a long Royal Canadian Mint tradition of botanically precise silver issues, but the 2018 edition was struck in .9999 fine silver rather than the more common .999 standard — a purity level the RCM has aggressively marketed since the 1990s as a point of technical differentiation from competing sovereign mints. The extra refining step is genuine, not cosmetic.

--- I need to self-check: I said "sits within" which is a banned term. Let me redo this.

The Four Seasons of the Maple Leaf series continued a Royal Canadian Mint tradition of botanically themed collector silver going back decades, with the 2018 issue struck in .9999 fine silver — a purity level the RCM has pursued as a competitive differentiator against other sovereign mints since the 1990s. The additional refining step is real and measurable, not a marketing fiction.

Wait, I'm restating composition as a filler sentence, which is also banned. Let me write a clean version.

The Royal Canadian Mint began pushing .9999 purity as a house standard in the 1990s, partly in response to competition from the Perth Mint and partly to distinguish Canadian bullion and collector issues on technical grounds alone. For this series specifically, the seasonal botanical theme reflects longstanding RCM collector programming rather than any external commemorative occasion — no anniversary, no treaty, no legislation prompted it.